根据汉语提示，完成下列句子。
1. 她很有耐性, 非常适合教学生。
She is very patient and she is very ______ ______ ______ students.
2. 这条河不像过去那样干净了。
The river is ______ ______ ______ ______ it used to
3. 他的腿坏了，几乎不能移动。
His leg is broken and he can ______ ______.
4. 我们应该爱护动物，关爱地球。
We should ______ ______ ______ animals and care for the earth.
5. 离开房间时不要忘记关灯。
Don't forget ______ ______ ______ the lights when you leave the room.
